Urwyler, Prabitha; Deyhle, Hans; Bunk, Olivier; Kristiansen, Per Magnus; Mueller, Bert (2012). Nanometer-size anisotropy of injection-molded polymer micro-cantilever arrays. Journal of applied physics, 111(10), p. 103530. American Institute of Physics 10.1063/1.4720942
Full text not available from this repository. (Request a copy)Understanding and controlling the structural anisotropies of injection-molded polymers is vital for designing products such as cantilever-based sensors. Such micro-cantilevers are considered as cost-effective alternatives to single-crystalline silicon-based sensors. In order to achieve similar sensing characteristics,structure and morphology have to be controlled by means of processing parameters including mold temperature and injection speed. Synchrotron radiation-based scanning small- (SAXS) and wide-angle x-ray scattering techniques were used to quantify crystallinity and anisotropy in polymer micro-cantilevers with micrometer resolution in real space. SAXS measurements confirmed the lamellar nature of the injection-molded semi-crystalline micro-cantilevers. The homogenous cantilever material exhibits a lamellar periodicity increasing with mold temperature but not with injection speed. We demonstrate that micro-cantilevers made of semi-crystalline polymers such as polyvinylidenefluoride, polyoxymethylene, and polypropylene show the expected strong degree of anisotropy along the injection direction.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Gerontechnology and Rehabilitation |
UniBE Contributor: |
Urwyler-Harischandra, Prabitha |
Subjects: |
500 Science > 530 Physics 600 Technology > 620 Engineering |
ISSN: |
0021-8979 |
Publisher: |
American Institute of Physics |
Language: |
English |
Submitter: |
Prabitha Urwyler-Harischandra |
Date Deposited: |
27 Jun 2014 08:03 |
Last Modified: |
05 Dec 2022 14:32 |
Publisher DOI: |
10.1063/1.4720942 |
URI: |
https://boris.unibe.ch/id/eprint/48972 |
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